photo credit: James Muggah
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Nuliajuk 2013 SE Baffin Leg
1 Mapping Operations -
Preliminary Results John Hughes Clarke and James Muggah Ocean Mapping Group Dept. Geodesy and Geomatics Engineering University of New Brunswick Nuliajuk 2013 Index |
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Approximate drift (from bottom left, to top
right) while underwater camera was in use. |
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Approximate drift (from bottom, to top), in
both sections, while underwater camera was in use. |
Southwind Fjord -
ArcticNet site Southwind Fjord was investigated for a suspected terrace at the head of the fjord. A few areas near the outer edge of the fjord were too deep for the EM3002 to track (>300m). The Nuliajuk therefore deliberately steamed into shallower water to obtain useful sounding data. The head of the fjord proved to have an active delta, with a nice channel system cutting through the softer sediments. It would be useful to re-survey this channel in following years to determine the activity of the delta front. See Squamish Prodelta Experiment for other examples of active delta systems. On the way out of the fjord, at a lower tide, two rock outcrops were found which had not been indicated on the chart or the Natural Resources Canada toporama products. A safe passage around the East side of the rock outcrops was mapped. The Knudsen Chirp 3200 echosounder had an AC to DC power board failure during the survey. In the remoteness of the area, a new power board was not readily available. The board had to be ordered, shipped to UNB and carried up to the Nuliajuk in the hands of Weston Renoud, who boarded the ship in Pangnirtung. |
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Approximate drift (from bottom left, to top
right) while underwater camera was in use. |
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